Abstract
Cold forming of magnesium and titanium is difficult due to their
hexagonal crystal structure and limited number of available slip systems.
However, high velocity deformation can be quite effective in increasing the
forming limits. In this study, electromagnetic forming (EMF) of thin AZ31B-O
magnesium and CP grade 1 titanium sheets were compared with normal deep
drawing. Same dies were used in both forming processes. Finite element (FE)
simulations were carried out to improve the EMF process parameters.
Constitutive data was determined using Split Hopkinson Pressure Bar tests
(SHPB). To study formability, sample sheets were electromagnetically launched
to the female die, using a flat spiral electromagnetic coil and aluminum
driver sheets. Deep drawing tests were made by a laboratory press-machine.
Results show that high velocity forming processes increase the formability of
Magnesium and Titanium sheets although process parameters have to be carefully
tuned to obtain good results.
| Original language | English |
|---|---|
| Pages (from-to) | 157-162 |
| Journal | AIP Conference Proceedings |
| Volume | 907 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2007 |
| MoE publication type | A4 Article in a conference publication |
| Event | 10th ESAFORM Conference on Material Forming - Zaragoza, Spain Duration: 18 Apr 2007 → 20 Apr 2007 |
Keywords
- EMF
- FEM
- Magnesium
- Titanium